CN1323266A - Hybrid drive system - Google Patents
Hybrid drive system Download PDFInfo
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- CN1323266A CN1323266A CN99812307A CN99812307A CN1323266A CN 1323266 A CN1323266 A CN 1323266A CN 99812307 A CN99812307 A CN 99812307A CN 99812307 A CN99812307 A CN 99812307A CN 1323266 A CN1323266 A CN 1323266A
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- 239000003990 capacitor Substances 0.000 claims abstract description 25
- 238000012806 monitoring device Methods 0.000 claims description 13
- 230000001141 propulsive effect Effects 0.000 claims description 11
- 239000000446 fuel Substances 0.000 abstract description 7
- 230000008929 regeneration Effects 0.000 description 7
- 238000011069 regeneration method Methods 0.000 description 7
- 230000001133 acceleration Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical class [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/28—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
- B60K6/46—Series type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/40—Electric propulsion with power supplied within the vehicle using propulsion power supplied by capacitors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/24—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
- B60W10/26—Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S903/00—Hybrid electric vehicles, HEVS
- Y10S903/902—Prime movers comprising electrical and internal combustion motors
- Y10S903/903—Prime movers comprising electrical and internal combustion motors having energy storing means, e.g. battery, capacitor
- Y10S903/904—Component specially adapted for hev
- Y10S903/907—Electricity storage, e.g. battery, capacitor
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Hybrid Electric Vehicles (AREA)
- Dc-Dc Converters (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Generally a secondary battery is used with a hybrid drive in which an electric motor is driven by electric power from an engine-driven generator and/or storage battery. The secondary battery restricts the improvement of fuel efficiency by its low charge/discharge efficiency and requires regular replacements because of its short life, resulting in high running costs. An inventive drive system comprises a plurality of series-connected capacitor cells to form a capacitor bank as a storage device, parallel monitors each connected across each of the capacitor cells to bypass discharge current when a predetermined terminal voltage is reached, and switching converters having a constant current output characteristic to control charging current for the capacitor bank. The drive system achieves improvements in fuel efficiency and running cost.
Description
Technical field
The present invention relates to have concurrently the hybrid drive of driving engine and electrical motor as the propulsion source of vehicle etc.
Technical background
The hybrid drive of driving motor is known, and electrical motor wherein is used to utilize by engine driven generators makes vehicle ' by the electric power that this electrical generator took place.Hybrid automobile has improved the travel fuel cost or the exhaust release characteristics of vehicle by using such actuating device.
Most of conducts of hybrid drive are carried out electrically-charged electrical storage device with the dump power of electrical generator and are used storage battery.Yet,, therefore may expect the effect of improving hardly by the fuel cost of braking the regeneration generation because charging and discharging of accumulator efficient is poor.Braking regeneration is to utilize vehicle inertia power when slowing down that electrical motor is generated electricity and the control of seeking effective use of energy sources, thereby the electric power that generated electricity of storage lavishly importantly.On the other hand, therefore storage battery is general needs periodic replacement because the cycle life of battery is short, thereby has improved the operating cost of device.
In addition, in Japanese kokai publication hei 6-209501 communique, the device of use cond is disclosed as the electrical storage device of driving motor.Therefore yet cond will be guaranteed the necessary capacity of vehicular drive because energy density is low, and the weight and volume of electrical storage device is just excessive, thereby is difficult to be loaded in the finite space of vehicle etc.
Disclosure of an invention
The object of the present invention is to provide the hybrid drive that can effectively utilize the electric power that electrical generator sends.In addition, the object of the present invention is to provide the cheap hybrid drive of operating cost.And then, the present invention also aims to provide the hybrid drive in the finite space that can be encased in vehicle easily.
The present invention has by engine-driven generator; Storage is from the electrical storage device of the electric power of above-mentioned electrical generator generation; In the hybrid drive with power-actuated electrical motor of the electric power of above-mentioned electrical generator and/or electrical storage device, as above-mentioned electrical storage device, the be connected in series cond group of a plurality of capacitor units of setting, be connected in parallel with above-mentioned each capacitor unit, if each terminal voltage surpasses predetermined value then the monitoring device in parallel of bypass charging current.Thus, even the size of the electrostatic capacity of each capacitor unit or leakage current is disperseed, also can evenly each capacitor unit be charged or discharge.In this case, do not estimate surplus owing to do not need to consider the withstand voltage aspect that is dispersed in of the voltage burden of each capacitor unit, therefore compare with the structure that monitoring device in parallel is not set, can reach the miniaturization that is equivalent to percent tens of degree according to capacity conversion.Though each unit of cond is withstand voltage little, yet by a plurality of capacitors in series are connected and can bring up to needed degree to magnitude of voltage.
In addition, the present invention possesses the switch current converter of control to the constant current output characteristic of the charging power of above-mentioned cond group in electrical storage device.If generally charge to cond from constant pressure source, then owing to the resistance components that exists between power supply and the cond, half of charging power becomes heat and scatters and disappears.Different therewith, owing to according to above-mentioned switch current converter the charging power to cond is controlled to be constant current output in the present invention, even therefore when braking regeneration, charge with the big electric current that electrical motor was taken place, also can access the high recharge efficiency more than 90%, thereby can improve the fuel cost of actuating device significantly.Because cond is not a constant-voltage device, can correctly obtain charge capacity (the electrically-charged state of SOC:State Of Charge) from voltage, therefore can effectively not control electrical generator lavishly according to this charge capacity.In addition and since cond discharge and recharge have extended cycle life, do not need between very long-term to change, promptly operating cost greatly reduces than storage battery.
Above-mentioned hybrid drive can also be applied in it and constitute hybrid automobile in vehicle.That is, possessing by engine-driven generator; Storage is from the electrical storage device of the generation electric power of above-mentioned electrical generator; By the electric power of above-mentioned electrical generator and/or the driven by power of electrical storage device, in the hybrid automobile of the electrical motor of the drive wheel of powered vehicle, possess and above-mentioned same cond group as above-mentioned electrical storage device, monitoring device in parallel, the switch current converter, simultaneously, the charge capacity that detects desired propulsive effort of vehicle and above-mentioned electrical storage device is set, controls above-mentioned switch current converter and based on the controller of the electric energy generated of above-mentioned driving engine.Above-mentioned controller is controlled above-mentioned switch current converter according to needed propulsive effort and is made and can obtain electrical motor output corresponding to needed propulsive effort, and the electric energy generated of controlling driving engine simultaneously and be electrical generator makes above-mentioned charge capacity is maintained optimum value.In electrical storage device, can always guarantee best charge capacity when thus, can make actuating device bring into play the needed propulsive effort of vehicle all the time.
In addition, as above-mentioned switch current converter, corresponding to being accompanied by the characteristic of voltage atdischarge end to 0 cond that reduces, the device by use has the constant voltage output characteristic of extensive work scope can utilize store power more expeditiously.Because the electric power of cond and terminal voltage is square proportional, therefore, if for example the switch current converter move rated output voltage 1/2 could use 70% of store power, 1/4 of rated output voltage of perhaps moving can use 94% of store power.Thereby, by requiring the action of master cock current converter according to the propulsive effort of vehicle,, also can access very high electric power utilization ratio even then when the acceleration of vehicle etc., discharge with big electric current.
And then, as above-mentioned cond,, can further reduce the weight and volume of electrical storage device by the electric dipole type cond that use has big static total amount, can more easily be installed in vehicle etc.
The simple declaration of accompanying drawing
Fig. 1 is the summary construction diagram that the present invention is useful in the embodiment in the hybrid automobile.
Fig. 2 is the summary construction diagram of the embodiment of electrical storage device.
The optimal morphology that is used to carry out an invention
Fig. 1 illustrates the schematic configuration of having used hybrid automobile of the present invention.As shown in the figure, the axle drive shaft that on the output shaft of driving engine 13 of generating usefulness, is connecting electrical generator 14.The alternating current that electrical generator 14 takes place is transformed to DC current by current converter 15, exports as the charging current of the drive current of electrical motor 10 or electrical storage device described later 12.
Between the left and right sides axletree 18～18 that axle drive shaft 9 has been installed, diff 19 is being set respectively.The output shaft that on the input shaft of diff 19, is connecting axle drive shaft 17 and gear case 16.The axle drive shaft that is connecting electrical motor 10 on the input shaft of gear case 16 is delivered to axle drive shaft 17 to the rotation of electrical motor with predetermined gear after slowing down.Electrical motor 10 is driven by the alternating electromotive force from inverter 11.The output process gear case 16 of electrical motor 10, axle drive shaft 17, diff 19, axletree 18 is delivered to drive wheel 9.
Switch current converter 23 has control to the constant current output characteristic of the charging power of cond group 20 and the control constant voltage output characteristic from the big-movement scope of the discharged power of cond group 20.This switch current converter 23 requires propulsive effort control discharge current by controller 24 according to vehicle.The above-mentioned requirements propulsive effort is for example represented by the acceleration pedal amount of entering into.
Use the big electric dipole type cond of electrostatic capacity as capacitor unit 21.Though each capacitor unit is withstand voltage little, yet, can bring up to needed withstand voltage by a plurality of capacitors in series are connected.As cond group 20, can also use numerous capacitor units 21 connection in series-parallel bonded assembly structures.
The propulsive effort of controller 24 control vehicles and braking regeneration etc.In controller 24, import the acceleration pedal amount of entering into of vehicle or the charge capacity (SOC) of braking mode and electrical storage device 12 etc. as the needed detection signal of above-mentioned various controls.
According to such structure, electrical storage device 12 electric power that electrical motor 10 is taken place during with the dump power of electrical generator 14 or braking regeneration charges, and this store power is supplied to electrical motor 10 when the big electric power of needs such as acceleration of vehicle.Though cond 21 is accompanied by voltage atdischarge end to 0 reduction, yet owing to have the switch current converter 23 of big-movement scope discharged power is controlled to be the constant voltage output characteristic, therefore can effectively utilize the store power of each cond 21 with very high efficient.
For example, 1/2 of the rated output voltage if switch current converter 23 is worked then can use 70% of store power, if the rated output voltage of working 1/4, then can use 94% of store power.Thereby, by the action that requires propulsive effort to come master cock current converter 23 according to vehicle, even under the situation that vehicle acceleration etc. is discharged with big electric current, also can access very high electric power utilization ratio.
The store power Ec of cond 21 represents with following formula (1).
Ec=1/2CV
2……(1)
In the formula, C: electrostatic capacity, V: voltage.
If to charge of a capacitor, then its electric power Ep represents with following formula (2) from constant pressure source.
Ep=QV=CV
2……(2)
In the formula, Q: electric charge.
The ratio Ec/Ep of charging power Ep and store power Ec is that charge efficiency is 50% according to (1) formula and (2) formula.This is because cond is not the such constant-voltage device of storage battery, if charge with constant voltage, then owing to the resistance components that exists between cond and the power supply, half of charging power becomes heat and lost cause.Different therewith, in the present embodiment, because switch current converter 23 is controlled to be constant current output to the charging power to cond 21, even therefore the big electric current that takes place with electrical motor 10 when braking regeneration charges, also can obtain the high recharge efficiency more than 90%, can further improve the effect of improving by the fuel cost of braking the regeneration generation.
If like this by beidirectional switch current converter 23 control charging currents, then with cond as the peak value accelerator of for example battery with and directly compare with load bonded assembly situation, the electric current rangeability further reduces.Therefore, allow to increase the internal resistance of cond, increase the thickness of electrode, specifically, for example, can access the cond of the above high-energy-density of 10～15Wh/kg by using the activated carbon electrodes that keeps electric charge.That is, as cond 21 owing to can use the big electric dipole type cond of electrostatic capacity, therefore can be the weight and volume miniaturization of electrical storage device 12 to finite space in-to-in degree such as the vehicles of can easily packing into.
If according to this embodiment,,, each cond 21 is balancedly charged or discharge although therefore the electrostatic capacity or the leakage current of each cond 21 are variant then owing on each cond 21, have monitoring device 22 in parallel respectively.Therefore, aspect withstand voltage, do not need to estimate surplus yet, be scaled capacity, can realize being equivalent to the miniaturization of percent tens of degree even consider the deviation of voltage burden.
Here, if being charged to monitoring device 22 in parallel once moves, be that starting point is carried out discharging and recharging of each cond 21 with it later on then, its result, when discharging and recharging, owing to automatically reduce the chance of monitoring device in parallel 22 actions, be accompanied by therefore that monitoring device 22 in parallel makes current bypass and contingent power consumption also reduces.
As the hybrid drive that is useful in the vehicle, wish that the electric weight that charges and discharge of control electrical storage device 12 makes SOC be in optimum range all the time.Though the battery of lithium ion class can more correctly be obtained SOC from cell pressure, therefore general numerous storage batterys is difficult to obtain SOC with high precision owing to be constant-voltage device.Different therewith, under the situation of cond,, therefore can correctly detect SOC from voltage owing to exist the relation of (1) formula and (2) formula between SOC and the voltage.Thereby, if according to this embodiment, then can correctly hold the SOC of electrical storage device 12, the not running of the driving engine 13 of controlling and driving electrical generator 14 effectively lavishly can further improve the travel fuel cost and the rideability of vehicle.
Therefore the cycle life that discharges and recharges of cond 21 can not need to change between used life up to vehicle owing to longer than the general vehicle life-span hardly.That is, compare with the storage battery operating cost of actuating device of cond 21 is much lower.In addition, when the input voltage range of inverter 11 is big, the device that can also the applying charge electric current have the constant voltage output characteristic as switch current converter 23.
Claims (4)
1. a hybrid drive possesses by engine-driven generator; Storage is from the electrical storage device of the generation electric power of above-mentioned electrical generator; With the electric power of above-mentioned electrical generator and/or power-actuated electrical motor of electrical storage device, it is characterized in that:
As above-mentioned electrical storage device, has the cond group that a plurality of capacitor units have been connected in series; Be connected in parallel with above-mentioned each capacitor unit, if each terminal voltage is above predetermined value then the monitoring device in parallel of charging current bypass; Control is to the switch current converter of the constant current output characteristic of the charging power of above-mentioned cond group.
2. a hybrid drive is possessing by engine-driven generator; Storage is from the electrical storage device of the generation power of above-mentioned electrical generator; Drive with the electric power of above-mentioned electrical generator and/or the electric power of electrical storage device, and in the hybrid automobile of the electrical motor of the drive wheel of powered vehicle, it is characterized in that:
As above-mentioned electrical storage device, has the cond group that a plurality of capacitor units have been connected in parallel; Be connected in parallel with above-mentioned each capacitor unit, if each terminal voltage is above predetermined value then the monitoring device in parallel of charging current bypass; Control is to the switch current converter of the constant current output characteristic of the charging power of above-mentioned cond group,
Also be provided with the charge capacity that requires propulsive effort and above-mentioned electrical storage device that detects vehicle simultaneously, control feasible can the obtaining of above-mentioned switch current converter and control the feasible controller that above-mentioned charge capacity is maintained optimum value of driving engine simultaneously corresponding to the electrical motor output that requires propulsive effort.
3. the hybrid drive described in claim 1 or claim 2 is characterized in that:
Above-mentioned electrical storage device possesses control from the discharged power of cond group and the switch current converter with constant voltage output characteristic of big-movement scope.
4. the hybrid drive described in claim 1 or claim 2 is characterized in that:
Each cond of above-mentioned electrical storage device is the electric dipole type cond with big electrostatic capacity.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP360483/1998 | 1998-12-18 | ||
| JP10360483A JP2000184508A (en) | 1998-12-18 | 1998-12-18 | Hibrid drive system of vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1323266A true CN1323266A (en) | 2001-11-21 |
| CN1213883C CN1213883C (en) | 2005-08-10 |
Family
ID=18469601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998123072A Expired - Fee Related CN1213883C (en) | 1998-12-18 | 1999-03-24 | Hybrid drive system |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6661108B1 (en) |
| EP (1) | EP1153788A4 (en) |
| JP (1) | JP2000184508A (en) |
| KR (1) | KR20010089643A (en) |
| CN (1) | CN1213883C (en) |
| CA (1) | CA2355672A1 (en) |
| WO (1) | WO2000037278A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393549C (en) * | 2002-06-21 | 2008-06-11 | 日产柴油机车工业株式会社 | Vehicle power storage controller |
| CN101130342B (en) * | 2006-08-24 | 2012-07-18 | 马自达汽车株式会社 | Control system for hybrid vehicle |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10116463A1 (en) * | 2001-04-03 | 2002-10-10 | Isad Electronic Sys Gmbh & Co | System for storing electrical energy, and method for operating such an energy storage system |
| JP2003111286A (en) * | 2001-10-02 | 2003-04-11 | Okumura Laboratory Inc | Bank switching capacitor device equipped with parallel monitor |
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1999
- 1999-03-24 EP EP99910686A patent/EP1153788A4/en not_active Withdrawn
- 1999-03-24 US US09/868,233 patent/US6661108B1/en not_active Expired - Fee Related
- 1999-03-24 KR KR1020017007573A patent/KR20010089643A/en not_active Application Discontinuation
- 1999-03-24 CN CNB998123072A patent/CN1213883C/en not_active Expired - Fee Related
- 1999-03-24 WO PCT/JP1999/001494 patent/WO2000037278A1/en not_active Application Discontinuation
- 1999-03-24 CA CA002355672A patent/CA2355672A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100393549C (en) * | 2002-06-21 | 2008-06-11 | 日产柴油机车工业株式会社 | Vehicle power storage controller |
| CN101130342B (en) * | 2006-08-24 | 2012-07-18 | 马自达汽车株式会社 | Control system for hybrid vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010089643A (en) | 2001-10-08 |
| CN1213883C (en) | 2005-08-10 |
| CA2355672A1 (en) | 2000-06-29 |
| EP1153788A4 (en) | 2003-05-21 |
| US6661108B1 (en) | 2003-12-09 |
| JP2000184508A (en) | 2000-06-30 |
| WO2000037278A1 (en) | 2000-06-29 |
| EP1153788A1 (en) | 2001-11-14 |
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